How to request image with dedicated bit depth from image picker

Hi,


We are using the image picker to get images from the photo app on iOS 11. In iOS 11 a couple of changes have been made to the way how the image can be accessed. I found some documentation that explains that the app doesn’t get access to the photo app anymore but the app sends the photo/video over to our app. The photo seems to be copied into a folder inside our app and we get the file uri.


We are wondering whether it is possible to request a dedicated quality for the image that is going to be sent to our app. In particular we’d like to set the bit depth. I checked the properties of the image picker already but did not find anything helpful. Maybe I overlooked it. I’m aware that there is a property for setting the export format (compatible/current). But I understood this would change the format. However, we are fine with the format but need it with a different bit depth.


Thank you very much in advance for your help!